KL 3379 then IB 631 at Madrid
Lanzarote → Madrid → Zurich
Timetable, Madrid time
21:00KL 3379 from Lanzarote at the gatealso AF 4837, DL 6773, AM 6823, EY 7580, UX 9076
16:40IB 631 to Zurich leaves the gatealso LA 1751, VY 5144, OB 5504, AA 8781
19 h 40 apart on the timetable, overnight
IB 631 leaves 19 h 40 after KL 3379 arrives on the timetable: more than half a day, so not a connection we count.